Soil improvement and shoring works consist of piling with jet grouting for shoring and cut-off wall, bottom plug and foundation soil improvement to retain a H = 6,5 – 9,0 m deep excavation in very soft-loose alluvial deposits under groundwater table. A total of 1.600 m bored pile (d= 65 cm), 8.500 m jet grout columns (ø60 cm, ø80 cm) and 8.000 m overburden drill have been executed in this project.
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